
doi: 10.1007/bf00712097
The genetic theory ofMcFadden andSears regarding the origin of spelt and related wheats is defended. This theory postulates thatT. spelta arose fromT. dicoccum (orT. dicoccoides) x Ae. squarrosa in the natural area of the latter. This hybrid became a component of a mixed crop of emmer and einkorn, but only a fractional one, and this medley was brought to southwestern Germany and northern Switzerland, where conditions particularly favorable to spelt caused it to emerge as a major crop.
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